package com.wat.aop;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;

/**
 * @Classname ProxyFactory
 * @Description TODO
 * @Date 2020/9/7 10:21
 * @Created by lifutao
 */
public class ProxyFactory {
	//维护一个目标对象
	private Object target;
	public ProxyFactory(Object target){
		this.target=target;
	}

	//给目标对象生成代理对象
	public Object getProxyInstance(){
		return Proxy.newProxyInstance(
				target.getClass().getClassLoader(),
				target.getClass().getInterfaces(),
				new InvocationHandler() {
					@Override
					public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
						System.out.println("开始事务:" + method.toString());
						//执行目标对象方法
						Object returnValue = method.invoke(target, args);
						System.out.println("提交事务");
						return returnValue;
					}
				}
		);
	}
}
